User Define Language Extensions - too many causes a crash, but not enough allowed
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 Hi All, I have several hundred log files that I would like to automatically be applied with a User Defined Language. The extension of the files range from .1 to .200, however, it would appear that you can only add a certain number of extension into the list box. I have tried editing the Userdefinedlanguage.xml file directly, but this simply case Notepad++ to crash. Is there a way to define a RegEx pattern to match? Cheers 
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 Hey @Claudia-Frank, Thanks for the feedback. Having looked at the scripts, I believe that they could indeed be modified. I have tasked myself with understanding Python (for 2017), but the modification of the scripts shouldn’t be too much of a pain. I too use other scripts (PowerShell) to open various files so might need to look at some of the other modifications mentioned too. Cheers, Chris 
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 Maybe it is also worth to create a issue at https://github.com/notepad-plus-plus/notepad-plus-plus/issues about the crashes you could create. Think that shouldn’t happen. 
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 @cheg, sure will do, although user “intervention” in the XML might be seen as fiddling beyond reasonable control (although I suppose the exception should still be caught and handled). FWIW, if you manually keep adding extensions into the Extension box in the UDL dialogue, it will only save back a certain number of these (I got to 87 with another text extension included). It doesn’t stop you from entering more extensions, only that it saves out a limited set. 
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 To cross reference - https://github.com/notepad-plus-plus/notepad-plus-plus/issues/2727 
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 bulk rename your files to the same extension file.1 
 file.2
 file.3become file.1.txt 
 file.2.txt
 file.3.txtor whatever extension you need in windows, open cmd window, navigate to your folder then use rename *.* *.*.txt or do a copy command copy *.* *.*.txt harder to rename back to original filenames, though 
